Question

tìm x

\(\dfrac{-11}{12}.x+0,25=\dfrac{5}{6}\)

Answer 1

\(\dfrac{-11}{12}.x+0,25=\dfrac{5}{6}\)

\(\Rightarrow\dfrac{-11}{12}.x=\dfrac{5}{6}-0,25\)

\(\Rightarrow\dfrac{-11}{12}.x=\dfrac{7}{12}\)

\(\Rightarrow x=\dfrac{7}{12}:\dfrac{-11}{12}\)

\(\Rightarrow x=\dfrac{-7}{11}\)

Vậy...........

Answer 2

-11/12.x+0.25=5/6 (1)

<=> -11/12.x=5/6-0.25

<=>-11/12.x=7/12

<=>x= 7/12:(-11/12)

<=>x=84/-132=

Vậy nghiệm của phương trình (1) là:

S={-7/11}